thsi word simply refers to pornography. Used in personal FTPs as the name of the folder containing pornography. The word can also be altered so that an "Orphanarium" is the folder for porn and the "Orphans" are the porn files.

Dude you love your Orphans!
Look at the size of that Orphanarium!
Do you have nothing better to do than collect Orphans!
Is your Orphanarium an all girls one, or boys and girls?
This is the best Orphan i have seen in a while.